Amostragem De Aves Por Pontos Em Uma Floresta Estacional Semidecidual S O Paulo Brasil
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Amostragem De Aves Por Pontos Em Uma Floresta Estacional Semidecidual S O Paulo Brasil
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Author : Gustavo Sigrist Betini
language : pt-BR
Publisher:
Release Date : 2001
Amostragem De Aves Por Pontos Em Uma Floresta Estacional Semidecidual S O Paulo Brasil written by Gustavo Sigrist Betini and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Este estudo pretendeu testar e discutir como a variação da capacidade de detecção de um observador pode influenciar os resultados de uma amostragem de aves por pontos, em diferentes períodos do dia, tempos de permanência no ponto e distâncias de observação diferentes. Para tal, uma grade com 25 pontos eqüidistantes 100 metros entre si foi marcada numa floresta semidecidual de uma região tropical. Tais pontos eram visitados num dia, em tres períodos de observação, manhã, meio do dia e fim de tarde. Cada período era amostrado por 150 minutos, divididos em amostras de 5 minutos. Neste tempo, cada contato era anotado e estimada sua distância em relação ao observador (dentro ou fora de um raio de 50 metros). Usou-se número de contatos como uma medida da detecção do numero de indivíduos e/ou grau de atividade das espécies presentes na área. Os resultados mostraram que a grande maioria da comunidade de aves pode ser amostrada em quaisquer períodos do dia, porém o esforço de coleta na manhã é praticamente a metade dos períodos do meio do dia e fim da tarde. Porém, estes resultados não são os mesmos para as diferentes espécies. O tempo máximo de espera num ponto foi de 10 minutos, em qualquer período do dia. Distâncias menores que 50 metros foram necessárias para um levantamento quantitativo e para um levantamento qualitativo não houve limite de distância. O metodo de pontos de amostragem proporciona uma estimativa pouco precisa e pouco ac.
Pap Is Avulsos De Zoologia S O Paulo
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Author :
language : en
Publisher:
Release Date : 2009
Pap Is Avulsos De Zoologia S O Paulo written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Zoology categories.
Ornitologia E Conserva O
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Author : Sandro Von Matter
language : pt-BR
Publisher: Technical Books Editora
Release Date : 2010
Ornitologia E Conserva O written by Sandro Von Matter and has been published by Technical Books Editora this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Birds categories.
'Ornitologia e Conservação Ciência Aplicada, Técnicas de Pesquisa e Levantamento' foi escrito por diversos especialistas do país, dentre mais de 80 colaboradores. Com dezenas de ilustrações coloridas, aborda ao longo dos seus 24 capítulos as mais diversas áreas de pesquisa com aves, abrangendo temas como inventário de espécies, anilhamento de aves, coleta de espécimes, avaliação de impacto ambiental, controle de aves em aeroportos, restauração de áreas degradadas, parasitologia, toxicologia, genética, frugivoria entre outros.
Neotropical Birds
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Author : Douglas F. Stotz
language : en
Publisher: University of Chicago Press
Release Date : 1996-06
Neotropical Birds written by Douglas F. Stotz and has been published by University of Chicago Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-06 with Nature categories.
This unparalleled wealth of finely detailed ecological information on Neotropical bird communities will prove invaluable to all Neotropical wildlife managers, conservation biologists, and serious birders.
Applied Ecology And Human Dimensions In Biological Conservation
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Author : Luciano M. Verdade
language : en
Publisher: Springer
Release Date : 2014-05-12
Applied Ecology And Human Dimensions In Biological Conservation written by Luciano M. Verdade and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-12 with Science categories.
This book provides both the conceptual basis and technological tools that are necessary to identify and solve problems related to biodiversity governance. The authors discuss intriguing evolutionary questions, which involve the sometimes surprising adaptive capacity of certain organisms to dwell in altered and/or changing environments that apparently lost most of their structure and functionality. Space and time heterogeneities are considered in order to understand the patterns of distribution and abundance of species and the various processes that mold them. The book also discusses at which level—from genes to the landscape, including individuals, populations, communities, and ecosystems—men should intervene in nature in order to prevent the loss of biodiversity.
Monitoring Bird Populations By Point Counts
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Author : C. John Ralph
language : en
Publisher: DIANE Publishing
Release Date : 1998-05
Monitoring Bird Populations By Point Counts written by C. John Ralph and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-05 with categories.
Point counts of birds are the most widely used quantitative method and involve an observer recording birds from a single point for a standardized time period. In response to the need for standardization of methods to monitor bird populations by census, researchers met to present data from various investigations working under a wide variety of conditions, and to examine various aspects of point count methodology. Statistical aspects of sampling and analysis were discussed and applied to the objectives of point counts. The final chapter presents these standards and their applications to point count methodology.
Emerging Threats To Tropical Forests
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Author : William F. Laurance
language : en
Publisher: University of Chicago Press
Release Date : 2006-10
Emerging Threats To Tropical Forests written by William F. Laurance and has been published by University of Chicago Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-10 with Nature categories.
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Forests And Insects
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Author : Allan D. Watt
language : en
Publisher: Springer Science & Business Media
Release Date : 1997-09-30
Forests And Insects written by Allan D. Watt and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-09-30 with Nature categories.
This book covers the full breadth of forest entomology. It combines the work of forest entomologists working on the impact and management of forest pests with those involved in diversity assessment and conservation of insects in forests. Forests and Insects demonstrates that both these disciplines demand an understanding of population and community biology. The book covers such topics as colonization of trees by insects, population dynamics of forest insects, insect natural enemies, the effects of climate change and pollution on forest pests, spatial variation in the abundance of insects,the mineralization of carbon by termites, the impact of herbivorous insects, and the conservation of forest insect diversity, including the effects of forest fragmentation and deforestation. This Royal Entomological Society Symposium volume will be of great interest to all agricultural and forest entomologists, population and community biologists, pest management specialists and anyone concerned with the conservation of forest biodiversity.
A Natural History Of Amphibians
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Author : Robert C. Stebbins
language : en
Publisher: Princeton University Press
Release Date : 2021-08-10
A Natural History Of Amphibians written by Robert C. Stebbins and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-10 with Nature categories.
This is a book for all readers who want to learn about amphibians, the animal group that includes frogs, toads, salamanders, and caecilians. It draws on many years of classroom teaching, laboratory experience, and field observation by the authors. Robert Stebbins and Nathan Cohen lead readers on a fascinating odyssey as they explore some of nature's most interesting creatures, interspersing their own observations throughout the book. A Natural History of Amphibians can serve as a textbook for students and independent learners, as an overview of the field for professional scientists and land managers, and as an engaging introduction for general readers. The class Amphibia contains more than 4,500 known living species. New species are being discovered so rapidly that the number may grow to more than 5,000 during our lifetimes. However, their numbers are being rapidly decimated around the globe, largely due to the encroachment of humans on amphibian habitats and from growing human-caused environmental pollution, discussed at length in the final chapter. The authors focus our attention on the "natural history" of amphibians worldwide and emphasize their interactions with their environments over time: where they live; how they reproduce; how they have been affected by evolutionary processes; what factors will determine their destinies over time. Through the experienced eyes of the authors, who are skilled observers, we come to see and understand the place of amphibians in the natural world around us.
The Atlantic Forest
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Author : Marcia C. M. Marques
language : en
Publisher: Springer Nature
Release Date : 2021-01-13
The Atlantic Forest written by Marcia C. M. Marques and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-13 with Science categories.
The Atlantic Forest is one of the 36 hotspots for biodiversity conservation worldwide. It is a unique, large biome (more than 3000 km in latitude; 2500 in longitude), marked by high biodiversity, high degree of endemic species and, at the same time, extremely threatened. Approximately 70% of the Brazilian population lives in the area of this biome, which makes the conflict between biodiversity conservation and the sustainability of the human population a relevant issue. This book aims to cover: 1) the historical characterization and geographic variation of the biome; 2) the distribution of the diversity of some relevant taxa; 3) the main threats to biodiversity, and 4) possible opportunities to ensure the biodiversity conservation, and the economic and social sustainability. Also, it is hoped that this book can be useful for those involved in the development of public policies aimed at the conservation of this important global biome.